C # insert Excel cell data and write Excel Data

/// <Summary>
/// Insert data
/// </Summary>
/// <Param name = "rowindex"> row number </param>
/// <Param name = "columnindex"> column number </param>
/// <Param name = "content"> content </param>
/// <Param name = "comment"> annotation </param>
Public static void insertcell (INT rowindex, int columnindex, string content, string comment)
{

Microsoft. Office. InterOP. Excel. applicationclass Excel = WBB. Application as Microsoft. Office. InterOP. Excel. applicationclass;

Microsoft. Office. InterOP. Excel. Workbook WB = excel. workbooks [1];

Int A = WB. application. activecell. row;

Microsoft. Office. InterOP. Excel. worksheet Ws = WB. worksheets [1] as Microsoft. Office. InterOP. Excel. worksheet;

Range = ws. cells;

Microsoft. Office. InterOP. Excel. Range ocell = range [rowindex, columnindex] as Microsoft. Office. InterOP. Excel. range;

Ocell. value2 = content;
}